Gas separation membrane manufacturer Evonik is celebrating the delivery of its SEPURAN range to more than 1,000 reference plants worldwide as of the end of 2021.

The German company has established a leading status in the gas separation membrane industry since its inception ten years ago 

Its SEPURAN range has seen strong demand across the industrial gas sector for biogas, nitrogen, hydrogen and natural gas applications. 

The technology uses polymer-based hollow-fibre membranes constructed from polymer polyimide developed in-house, allowing for the separation of gases such as methane, nitrogen, or hydrogen from gas mixture. 

A key component of the product’s success has been its backward-integrated compatibility. 

“Backward integration is the key driver of our innovative strength,” said Dr. Goetz Baumgarten, Head of the Membranes Innovation Growth Field, Evonik. 

“Thanks to our many years of expertise in polymer chemistry, we already adjust the membrane properties at the development stage of the base material – our high-performance polymer – in order to produce particularly selective, productive, and robust membranes that can be used even under extreme process conditions, such as those found in the oil and gas industry or in aviation.” 

In October last year (2021), gasworld spoke with Jörg Balster, Evonik’s Director of SEPURAN Process Gases as part of the Air Gases webinar series.

He gave keen insights into the functionality of the SEPURAN membrane technology, as well as growth opportunities that have arisen due to the increasing demand and cost of air gases and also due to the rising popularity of sustainable alternative fuels such as hydrogen.

“Evonik is also making membranes now for electrolysis so that you can create hydrogen from water in principle, but also with our gas separation technology.”

“If hydrogen now in Europe is transported over the natural gas grid, we easily can extract some hydrogen at the end,” he explained.

Evonik is currently expanding its existing production capacities at its Schörfling am Attersee site in Austria.